★ Science is everywhere—A set of interesting encyclopedias of science written by a famous popular science writer!
★ Features vivid and interesting hand-drawn cartoon characters. Teaches scientific principles in daily life through engaging cartoons!
★ Content and characters are reviewed by experts, making the series rich and authoritative in content!
★ The production and manufacturing processes of nearly a hundred items are illustrated in the series, along with numerous small facts and their extensions!
★ Suitable for both kids reading alone and reading with their parents—Let’s explore the answers in the books together with parents!
★ The series focuses on cultivating children's scientific habits and encourages them to ask questions and find answers. These great habits will benefit them for life.

The series includes 4 books: Secrets in the Kitchen; Knowledge in Household Supplies; Knowledge in the Snack Cabinet; Science in the Writing Case.

Starting from students' stationery in daily life, *Science in the Writing Case* explains the production processes of dozens of common stationery items. It helps young readers understand how the stationery they use every day is made.

Liu He: Holds a PhD from the Department of History at Jilin University, and is a senior book planner and independent writer. He has worked in children's book planning for many years. Dr. Liu excels at identifying cultural needs in children's growth and proposes nurturing Chinese children with Chinese culture. "I wish every child could soar to where they want to go, using knowledge as their wings!" he said.

Ding Han: A lecturer at Qingdao University with a PhD in Polymer Chemistry and Physics from the Department of Chemistry at Jilin University. He has previously participated in the Youth Project of the National Natural Science Foundation of China.

Writing and drawing—Manufacturing process of pencils /6
Art of nibs—Manufacturing techniques of pens /14
Colorful world—Manufacturing of markers /24
Beauties of tradition—Manufacturing of writing brushes /28
Chalks of wisdom—Manufacturing of chalk /38
Smooth—Manufacturing flow of ballpoint pens /42
Graffiti—Manufacturing flow of crayons /50
See the world clearly—Manufacturing of glasses /53
With the ability to erase and alter—Manufacturing of erasers /61
Special grasses—Manufacturing of rice paper /64
Black trace—Manufacturing of ink /68
Carriers of knowledge—Manufacturing of carbon paper /72
Regular supplies for crafts—Manufacturing of liquid glue /82
Transparent connection—Manufacturing of packaging tape /85